having a look at south korea, expanding its air defense in the south east china sea. korea's move has covered two islands. the u.s. vice president joe was in beijing last week. north korea confirmed the fall of kim jong-un's uncle. weekend, -- shots were brushes were used to remove his uncle. lastly what we have got coming up next. thick fog choking northeast china at the moment. we have got forecasts of visibility less than 20%. for the an orange alert severe weather. this is the second highest fog alert warning. will hold a memorial service for nelson mandela a honest bird tomorrow -- in johannesburg tomorrow. charlie rose has a special program remembering nelson mandela. guests tell him their memories. >> they really talked about his politics. they talked about his character as a person and how dominant a physical presence he was. people forget that he loved sports and boxing. he used to practice boxing in his jail cell. he loved to follow the races. he followed global sports. he wanted the guards to update him on various sporting events. that on bloomberg p.m. hon